ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
Fusion Science and Technology
October 2025
Latest News
DOE’s latest fusion energy road map aims to bridge known gaps
The Department of Energy introduced a Fusion Science & Technology (S&T) Roadmap on October 16 as a national “Build–Innovate–Grow” strategy to develop and commercialize fusion energy by the mid-2030s by aligning public investment and private innovation. Hailed by Darío Gil, the DOE’s new undersecretary for science, as bringing “unprecedented coordination across America's fusion enterprise” and advancing President Trump’s January 2025 executive order, on “Unleashing American Energy,” the road map echoes plans issued by the DOE’s Office of Fusion Energy Sciences (FES) in 2023 and 2024, with a new emphasis on the convergence of AI and fusion.
The road map release coincided with other fusion energy events held this week in Washington, D.C., and beyond.
Gian Piero Celata, Maurizio Cumo, Giovanni Elvio Farello, Pier Carmelo Incalcaterra, Antonio Naviglio
Nuclear Technology | Volume 60 | Number 1 | January 1983 | Pages 137-142
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT83-A33109
Articles are hosted by Taylor and Francis Online.
With reference to loss-of-coolant accidents in light water reactors, the critical flows of subcooled liquids are examined, particularly from the viewpoint of the time extension of the metastability state. “Ad hoc” tests have outlined an upper limit of this time range at 10−4 s. The flow characteristics of the unbounded jets have been investigated both externally (via photographic measurements of the external shapes at various subcoolings) and internally (via pressure profiles in the radial direction). As far as pressure profiles within the jet are concerned, the presence in the jets characterized by the subcooled inlet conditions of a central liquid core gradually evaporating has been outlined.
